For t = delaunay(cbind(x, y)), where (x, y) is a 2D set of
points, tsearch(x, y, t, xi, yi) finds the index in t
containing the points (xi, yi). For points outside the convex hull
the index is NA.
tsearch(x, y, t, xi, yi, bary = FALSE)X-coordinates of triangluation points
Y-coordinates of triangluation points
Triangulation, e.g. produced by t = delaunayn(cbind(x, y))
X-coordinates of points to test
Y-coordinates of points to test
If TRUE return barycentric coordinates as well as index
of triangle.
If bary is FALSE, the index in t containing
the points (xi, yi). For points outside the convex hull the index
is NA. If bary is TRUE, a list containing:
the index in t containing the points (xi,
yi)
a 3-column matrix containing the barycentric coordinates with respect to the enclosing triangle of each point code(xi, yi).
tsearchn, delaunayn